Chelsea set to be offered transfer swap of Diego Costa or Koke for Thibaut Courtois

Atletico Madrid ready to dangle A 20m-rated striker or Manchester United target midfielder in front of the Blues to try to get them to sell loan-star keeper Chelsea may have to part with back-up keeper Thibaut Courtois permanently if they want to land Atletico Madrid's star striker Diego Costa, writes Tom Hopkinson in the Sunday People .